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Finding the Fourth Proportional to 65,102.88, 89,840.16 and 36,807.36

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Solution

The fourth proportional to 65,102.88, 89,840.16 and 36,807.36 is: 50,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,102.88 : 89,840.16 = 36,807.36 : x
  2. Step 2: Convert to fraction form
    65,102.88/89,840.16 = 36,807.36/x
  3. Step 3: Cross multiply
    65,102.88x = 89,840.16 × 36,807.36
  4. Step 4: Simplify right side
    65,102.88x = 3,306,779,111.58
  5. Step 5: Solve for x
    x = 3,306,779,111.58/65,102.88
  6. Step 6: Final answer
    x = 50,793.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.